Preparation / Directions:
Soak wood ears and lily buds in 3 cups hot water for 15 minutes; remove woody stems from both; shred wood ears with a cleaver.
Slice pork into thin strips; chop strips into shreds; Combine marinade in a small bowl; add pork, mix well; let stand 15 minutes.
Combine chicken stock, 5 cups water and salt in a medium saucepan; bring to a boil over high heat; reduce heat to medium; add mushrooms, water chestnuts, bamboo shoots, carrot, wood ears and lily buds; simmer 3 to 4 minutes; add pork with marinade and bean curd; bring to a boil; add Worcestershire sauce and vinegar. Dissolve cornstarch in 5 tbsp water to make a paste; slowly stir into soup.
Cook over medium heat until soup thickens slightly; stir egg into soup; add black pepper, white pepper and sesame oil.